It is not unusual to not get a good Y-DNA match; I've done the Big-Y at FTDNA and don't have a match within about 3,000 years! But if you've also had an auDNA test done then you should have at least some matches. The standard first recommendation is to copy your results to genesis.gedmatch.com so that you get the widest pool to match against. We all know stories of people who have had success; I don't know if there are any estimates of the number of people who have tried without success, so it's hard to know what you can expect. But as more people test, the better the chances will become.